生态环境部答每经问：124个土壤污染源头管控项目全部完成

Core Viewpoint - The Ministry of Ecology and Environment has completed 124 soil pollution source control projects as part of the national "14th Five-Year Plan," focusing on soil and groundwater pollution issues [1][2]. Group 1: Soil Pollution Control Projects - A total of 124 soil pollution source control projects have been established, including 74 enterprise-related and 50 farmland-related projects [1]. - The enterprise-related projects can manage the leakage risk of 54.978 million tons of toxic and harmful substances annually, while farmland projects reduce heavy metal particulate emissions by 191.3 tons each year [2]. Group 2: Technological Innovations - A three-pronged technical approach has been developed, including visual monitoring of leaks, dual insurance protection technologies, and early detection systems for leakage [2]. - For instance, a company in Tianjin has transformed a 30-year-old underground oil wastewater pipeline to enhance leak visibility, managing a leakage risk of approximately 100,000 tons of oil wastewater annually [2]. Group 3: Economic and Environmental Benefits - The projects aim to create a win-win model for environmental and economic benefits, encouraging enterprises to achieve cost savings while enhancing environmental safety [3]. - A company in Sichuan has saved over 10 million yuan annually in pollution control costs through process upgrades and green transformations [3]. Group 4: Rural Wastewater Treatment - The rural domestic sewage treatment rate has exceeded 51%, more than doubling from 25.5% at the end of the "13th Five-Year Plan" [4]. - Over 110,000 administrative villages have completed environmental remediation, surpassing the planned target by over 30,000 villages [4]. Group 5: Implementation Strategies - The Ministry has established a comprehensive database for over 500,000 administrative villages, breaking down tasks by year and assessing quality quarterly [5]. - The approach emphasizes local characteristics and farmer preferences, combining pollution control with resource utilization [5]. Group 6: Successful Case Studies - In Guangdong, a new governance model has reduced construction costs and time by 50%, while operational costs have decreased by over 96% [6]. - In Henan, process optimization has lowered operational costs from 1.5 yuan per ton of water to 0.15 yuan, demonstrating effective management of resources [6].